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List:       linux-backports
Subject:    [PATCH 05/19] backports: add crc7_be()
From:       Hauke Mehrtens <hauke () hauke-m ! de>
Date:       2014-06-15 21:21:33
Message-ID: 1402867307-31337-6-git-send-email-hauke () hauke-m ! de
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This was added in:
commit 1836eea209546b870dd83f3f4ef234d6598a560d
Author: George Spelvin <linux@horizon.com>
Date:   Sat May 10 10:32:57 2014 -0400

    lib/crc7: Shift crc7() output left 1 bit

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 backport/backport-include/linux/crc7.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 backport/backport-include/linux/crc7.h

diff --git a/backport/backport-include/linux/crc7.h b/backport/backport-include/linux/crc7.h
new file mode 100644
index 0000000..12747f8
--- /dev/null
+++ b/backport/backport-include/linux/crc7.h
@@ -0,0 +1,14 @@
+#ifndef _BACKPORT_LINUX_CRC7_H
+#define _BACKPORT_LINUX_CRC7_H
+#include_next <linux/crc7.h>
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0)
+#define crc7_be LINUX_BACKPORT(crc7_be)
+static inline u8 crc7_be(u8 crc, const u8 *buffer, size_t len)
+{
+	return crc7(crc, buffer, len) << 1;
+}
+#endif /* < 3.16 */
+
+#endif /* _BACKPORT_LINUX_CRC7_H */
-- 
1.9.1

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